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GEOMETRY IN OUR WORLD By:Lydia Burnett Karina Aguirre Mallory Etzler May, 2011
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CIRCLE *A plane shape bounded by continuous lines which is always the same distance from the center. * The tuba is a clear example of a circle.
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TREE REFLECTION *The mirror image of a figure that has been flipped over a line. * The tree has a reflection.
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*Congruent means having the same shape and the same size. * As you can see the chairs are the same shape and size. CONGRUENT
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TESSELLATION *Tessellation is a pattern of shapes that fit together without any gaps. * This basketball court fits together without any gaps.
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ACUTE ANGLE *An angle measuring less than 90 degrees. *The two fan panels make an acute angle.
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PARALLEL *Lines that are the same distance apart, they go on and on forever. * The orange lines on the hurdle are parallel.
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SPHERE * A three dimensional solid that is perfectly round. * This tree house is a good example of a sphere.
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SQUARE *A quadrilateral with four equal sides and four right angles. * As you can see these 12 shapes show many examples of squares
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TRIANGLE * A polygon with three angles and three sides. * The outside outline of the flower is a triangle
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INTERSECTING LINES * Lines that cross at a point * The peace sign has intersecting lines.
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